docs: def whois_emails(self, emails):
          """Calls WHOIS Email end point
  
          Args:
              emails: An enumerable of string Emails
          Returns:
              A dict of {email: domain_result}
          """
          api_name = 'opendns-whois-emails'
          fmt_url_path = u'whois/emails/{0}'
          return self._multi_get(api_name, fmt_url_path, emails)